libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c

   1 #include <stdlib.h>
   2
   3 #define N (1024 * 512)
   4 #define COUNTERTYPE unsigned int
   5
   6 int
   7 main (void)
   8 {
   9   unsigned int *__restrict a;
  10   unsigned int *__restrict b;
  11   unsigned int *__restrict c;
  12
  13   a = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  14   b = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  15   c = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  16
  17 #pragma acc kernels copyout (a[0:N])
  18   {
  19     for (COUNTERTYPE i = 0; i < N; i++)
  20       a[i] = i * 2;
  21   }
  22
  23 #pragma acc kernels copyout (b[0:N])
  24   {
  25     for (COUNTERTYPE i = 0; i < N; i++)
  26       b[i] = i * 4;
  27   }
  28
  29 #pragma acc kernels copyin (a[0:N], b[0:N]) copyout (c[0:N])
  30   {
  31     for (COUNTERTYPE ii = 0; ii < N; ii++)
  32       c[ii] = a[ii] + b[ii];
  33   }
  34
  35   for (COUNTERTYPE i = 0; i < N; i++)
  36     if (c[i] != a[i] + b[i])
  37       abort ();
  38
  39   free (a);
  40   free (b);
  41   free (c);
  42
  43   return 0;
  44 }